You drop a bagel, what would you do?

Maybe a weird question but this just happened to me.

I was at the grocery store getting a dozen bagels, none for myself, and one slipped out of my hand and bounced a few times on the floor. It was barely down for two seconds before it was back in my hand, but then I was stuck. What do I do with it now?

Do I just put it in the bag with the rest of “my” bagels? Put it back in the bagel rack/basket?
I wound up throwing it away.
But then I got to the cashier, and I was stuck again. I’m not paying with my money, but I basically took 13 of the store’s bagels.
So do I tell him I got 13 bagels? or just the 12?
I wound up just paying for the 12 I had in the bag.

It’s not like the bagel was expensive or anything. I just had no idea what to do.

What would you do? If you dropped the bagel? (It’s fine if you don’t answer totally serious : )